Let's say you scored a boondoggle to Los Angeles for a business conference, and instead sneaked off to nearby Disneyland with the family for a vacation on the corporate dime. Or maybe you simply told your boss you were meeting a client, but hit the golf links with your buddies.

If you carry a work-related iPhone, BlackBerry, Android or Windows Phone 7 smartphone, IT can track your movements. Never mind all the hand-wringing over the recent discussion that an iPhone secretly records its location in an obscure file stored locally and on the iTunes-synced PC - all unbeknownst to the user. Virtually every smartphone can deliver this information to IT, if IT is inclined to track it.

"If companies wanted to, they could do it," says Erik Woodland, technical support supervisor and network administrator at Fenner Drives, a manufacturer of power transmission and related products. "The technology has been around a long time."

Woodland is quick to point out that his BlackBerry-turned-iPhone company doesn't use the iPhone's now-infamous location file nor does Fenner Drives track employee whereabouts.

Other companies have been doing this for years in certain industries, such as transportation, via tracking software, such as TeleNav Track.

Apple iPhone Not Only Device Involved

Privacy advocates slammed Apple last week after researchers found that some iPhones record location information. Like all phones, the iPhone needs to know its location in order to connect to the right cell tower. The iPhone logs this location information in an unencrypted file.

Can this file be used to keep tabs on employees and executives? "Absolutely," says Forrester analyst Chenxi Wang. "This location history file is perhaps another data source for [mobile device management] systems."

While Wang doesn't think a location file like the one stored on the iPhone exists on an Android phone, Android itself transmits the phone location data back to a Google server periodically, according to a discovery made by the Wall Street Journal. Last year, Duke University researchers found that some of the most common Android apps transmit geo-location data to third-party ad or content servers, Wang says.

At the enterprise level, mobile management and security software vendor Zenprise gives companies the option to pull location information from BlackBerries, Androids and Windows Mobile phones and store it on the corporate server. The main reason companies activate this feature is to be able to find lost or stolen devices or to route field service technicians to nearby customers, says Ahmed Datoo, chief marketing officer at Zenprise.

Zenprise doesn't pull location data from the iPhone or access the iPhone's location file (even though it would be easy to do so) because Apple already provides a good service in MobileMe for tracking down lost or stolen iPhones, Datoo says.

Be Careful What Privacy You Sign Away

So is your employer tracking your movements through a smartphone? After all, IT has been known to monitor and log text messages, emails, even Web sites such as Facebook that you've visited on your PC or mobile device. Monitoring a mobile device's location and logging its history doesn't seem like much of a stretch.

If you think you're in the clear because you own the mobile device, think again. According to Zenprise, more than a few companies require employees who want to connect their personal smartphone or iPad to the corporate network to sign a legal document that entitles IT to access the device, manage apps, wipe data if necessary—and, in some cases, track the device's location.

"For company-issued devices, the organization is much more likely to mandate that it can track the location," Datoo says.

Chances are, though, that a company isn't tracking location every minute of the day merely to monitor an employee's whereabouts. Pulling location information via the GPS chip drains the battery, says Datoo, so there needs to be a good reason to collect this information.

"I don't think any company today is using location data to keep tabs on how employees are spending their time—it seems too far-fetched a thing to do," Forrester's Wang says. "But the ability to locate a phone is a real request that we hear from our customers all the time."

Of course, your experience will vary depending on vertical industry. For example, in the trucking industry, many organizations do regularly track their employees' whereabouts, since truckers need to be on time, only drive a certain amount of hours per day and stay within speed limits. Software exists to monitor all of these things. Employees in these situations are routinely informed by employers that the tracking software exists.